<template>
   <div id="detail">
        <nav-bar>
          <div slot="left" class="left" @click="backclick"><img src="~assets/img/common/back.svg" alt=""></div>
          <div slot="center" class="title">
            <div v-for="(item,index) in titles" class="title-item" :class="{active:index===currentItem}" @click="clickItem(index)">{{item}}</div>
          </div>
        </nav-bar>
   </div>
</template>

<script>
  import NavBar from "components/common/navbar/NavBar"
  export default {
    name: "childDetail",
    components:{
      NavBar
    },
    data(){
      return{
        titles:['商品','参数','评论','推荐'],
      }
    },
    props:{
      currentItem:{
        type:Number
      }
    },
    methods:{

      clickItem: function(index) {
        this.$emit('titleClick',index);
      },
      backclick(){
        this.$router.back()
      }
     }
  }
</script>

<style scoped>
.title{
  display: flex;
}
.title .title-item{
    flex: 1;
  }
  .active{
    color: var(--color-high-text);
  }
  .left{
    text-align: center;
  }
  .left img{
    margin-top: 10px;
  }
</style>
